CRONTAB_DJANGO_PROJECT_NAME - the name of your django project, used to build path path to manage.py and to mark the jobs in contrab via comment for later removing - default is read from DJANGO_SETTINGS_MODULE environment variable

CRONTAB_PYTHON_EXECUTABLE - path to the python interpreter executable used to run the scheduled job - default uses the interpreter executable used to `add` the jobs (via 'python manage.py crontab add')

CRONTAB_COMMAND_PREFIX - something you wanne do or declare before each job gets executed. A good point for environment variables. - default: '' (empty string) - example: 'STAGE=production'

CRONTAB_COMMAND_SUFFIX - something you wanne do after each job was executed. - default: '' (empty string) - example: (do you know a good example?)

CRONTAB_COMMENT - used for marking the added contab-lines for removing, default value includes project name to distinguish multiple projects on the same host and user - default: 'django-crontabs for ' + CRONTAB_DJANGO_PROJECT_NAME